<p>there was a part in the frq that i saw and was just like, “pshh, no way on earth i’m doing this. let’s just close the test and stare at other people scratching their heads.”
i think i did pretty fairly on the exam overall, so i hope that part in the frq doesn’t risk me too much.</p>
<p>that was the easiest math test i have ever taken. soooooooooo easy!!!</p>
<p>That was actually surprisingly easy…way easier than most of the previous years’!</p>
<p>Well…this was a shocker exam. So glad that I prepared for most of it too.</p>
<p>Anyways, here’s what I was shocked about the most.</p>
<p>-No Disk/Washer problems that ask you to calculate the volume.
-Like half of the exam was filled with convergence tests and MacLaurin/Taylor series
-Every year, an area problem would appear on the free-responses (an exception was 2007 in which an uproar happened soon after). Guess what happened this year?
-In my view, the questions were very conceptual.</p>
<p>Let’s face it, CollegeBoard was a huge dick this year.</p>
<p>@myusername4menow
Agreed!
My a and b were too far from my c and d, so I went back and found I had plugged in some wrong values for them and got it all fixed. Loved it :p</p>
<p>In my opinion-</p>
<p>Multiple choice Non calc was average. Some really easy problems, some really weird ones. The weird one that comes to my head was the tangent inverse function one…had no clue what to do with that.</p>
<p>Multiple choice calc was very easy. I did get an abnormal number of B choices, almost 7-8 out of the 17(though not in a row). But I wasn’t the only one who was like that, most of my friends did too, so I don’t think it’s out of an error.</p>
<p>FRQ Calculators were jokes. Like, the easiest things I’ve ever seen. Especially FRQ2. Parametric stuff is easy.</p>
<p>FRQ 3 with the piece-wise function was simple for the most part. I did miss the question about the inflection point though, while I realized that two of the points weren’t inflection points because they weren’t differentiable, I forgot there was another point.</p>
<p>FRQ 4 was fun…I loved it. It was my favorite. And ridiculously easy, since all 4 of your answers came out to be around the same.</p>
<p>FRQ 5 was the hardest FRQ yet still pretty easy. I did mess up on the 2nd part though because when I took the derivative I ended up with -1/5, forgetting that you had to include db/dt. </p>
<p>FRQ 6A was kind of tedious, but worked out in the end. B and C were simple if you knew what you were doing. </p>
<p>Overall- easyish MC, very easy FRQ= most likely harsher curve than usual</p>
<p>@nostalgicwisdom:</p>
<p>"I did miss the question about the inflection point though, while I realized that two of the points weren’t inflection points because they weren’t differentiable, I forgot there was another point.</p>
<p>==> The second derivative does not have to exist at the inflection point. The point must be on the curve, and the concavity must change, that is it. The second derivative can be undefined.</p>
<p>My opinions:
FRQs – so dam* easy. Forgot to do half of part b for the bird question. Teehee. The one with Euler’s was ridiculous. Messed up on the justifying or whatever for error bound. I said max |----| = # < # instead of max |----| < # < #. Would I get docked off?</p>
<p>MC – struggled with two or three, not gonna lie. But other than that, I almost thought the calculator section was AB. Seriously. Identifying series wasn’t hard, but convergence was a tad difficult. I do feel a lot more confident, though.</p>
<p>Is the taping new? I’ve never taken an AP test before I was so confused about the stickers for a while.</p>
<p>My friend had self studied BC. Guess what happened? They ordered AB for him, so now he has to take Form B.</p>
<p>Truth be told, if I don’t get a 5 I’ll be shocked. Arrogant as it may sound, this test was much too easy. It’s good I was very worried though–if I wasn’t so nervous about the test, I most definitely would not have studied as much as I did.</p>
<p>exam was a joke lol</p>
<p>Wait…
@Chromedydx</p>
<p>Despite the fact that f’x weren’t defined at two spots, those can still be inflection points? I just looked at the slopes and saw where they were going from - to + or vice versa. Wasn’t there only one, the one at 0?</p>
<p>Wow, that ended up stumping a lot of people in my class then. I just checked the definition of an inflection point and you’re right. The point must be defined only at f(x).</p>
<p>Edit- Looking at another definition
"Definition of an inflection point: An inflection point occurs on f(x) at x0 if and only if f(x) has a tangent line at x0 and there exists and interval I containing x0 such that f(x) is concave up on one side of x0 and concave down on the other side. "</p>
<p>Hmm. Can someone confirm whether f’ needs to be defined for an inflection point to occur?</p>
<p>Hey! I took the test today 
I was super worried but I think I got a 5. The exam was tough, but hopefully I was tougher. </p>
<p>F’’ doesnt need to be defined for an inflection point to occur. it’s when f’ changes from positive to negative.</p>
<p>i remember my calc teacher saying + in our review packet it said: find where the derivative/second derivative = 0 or fails to exist then see if the sign changes there</p>
<p>f’(x) must most certainly not be defined.</p>
<p>So can anyone give me a rough idea of about what raw score one needs (out of 108) to get a five on the exam?</p>
<p>Yep, p.o.i is just when f"x changes sign.</p>
<p>For raw score, I always guess 80, just to be harsh on myself. For this test, I don’t know.</p>
<p>68/108 or higher. maybe less maybe more</p>
<p>how does everyone think that the exam was easy?!
I agree that FR was ridiculously easy
but MC part A I completely died…it was brutal…</p>
<p>What did you guys do for the bird problem? The one with the graph? I got the second derivative, but i didn’t know how to explain how the graph doesn’t match. I wrote something about concavity, but I don’t know if that’s right…</p>
<p>since the second derivative was negative, the graph would have to be concave down over the entire domain. however, it was initially concave up, and so the graph is not possible. i wasn’t sure what to label the value as, I simply wrote -1/5 or -2.000.</p>